Liver Steatosis Is Common in Hepatitis C Patients, Especially Those with Genotype
3
Liver
steatosis, or accumulation of fat in liver cells, is a growing concern due
to increasing obesity in the population and recognition that chronic
hepatitis C virus (HCV) infection is associated with metabolic abnormalities.
In
the February 2008 Journal of Viral Hepatitis,
an international research team reported on a study of steatosis in 207 chronic
hepatitis C patients treated with pegylated
interferon alfa-2a (PegIntron) plus ribavirin.
Results
45 of 207 patients (22%) had
steatosis in > 5% of liver cells at baseline.
Significantly more subjects with
steatosis had HCV genotype 3 compared
to those without steatosis (51% vs 14%; P < 0.0001).
Patients with steatosis also
had:
Higher HCV RNA level (P = 0.0045);
Greater body weight (P = 0.0176);
Higher body mass index (BMI)
(P = 0.0352);
Higher serum triglyceride level
(P = 0.0364);
Greater incidence of hypertriglyceridemia
(P = 0.0009);
Greater likelihood of current
or past high blood pressure (P = 0.0229);
Lower cholesterol level (P =
0.0009).
Significant predictors of steatosis
overall were:
Genotype 3 HCV (OR 9.04; P <
0.0001);
Higher HCV RNA (OR 2.96; P =
0.0019);
Higher triglycerides (OR 1.06;
P = 0.0071).
Among genotype 3 patients, however,
HCV RNA was the only significant predictor of steatosis (OR 11.15; P = 0.0012).
Among patients with other HCV
genotypes, hypertriglyceridemia was the only significant predictor of steatosis
(OR 1.07; P = 0.0041).
134 of 207 patients (65%) achieved
sustained virological response (SVR) with pegylated interferon plus ribavirin.
Among genotype 3 patients with
SVR, steatosis decreased from 48% to 13%.
No change was observed in steatosis
among non-genotype 3 patients with SVR.
Conclusion
In
conclusion, the study authors wrote, “This large and comprehensive
analysis of a large data base from a multinational trial further adds to the observations
that chronic HCV is associated with hepatic steatosis in approximately a fifth
of patients.”
Further,
they continued, “features of the metabolic syndrome are associated with hepatic
steatosis in most of these patients. Steatosis is significantly more common in [patients with] genotype 3 compared with other genotypes, and in these patients,
an SVR is associated with steatosis clearance.”
02/01/08
Reference
KR
Reddy, S Govindarajan, P Marcellin, and others. Hepatic steatosis in chronic hepatitis
C: baseline host and viral characteristics and influence on response to therapy
with peginterferon alpha-2a plus ribavirin. Journal of Viral Hepatitis 15(2): 129-136.